Re: [OPSEC] Sharing a new draft

[liuchunchi <[e-mail]>]

Hi Med, 

Thank you for your valuable comments.

I am very happy to add the history of proof of transit work in the -01 draft. It could also help to develop more convincing use cases to the work. The draft is open for discussion and we invite suggestions and collaborations of all kinds :)

Regarding the appropriate venue of the work, I do think path assessment/validation is a big topic not one draft can cover. It includes various of techniques of different maturity stages-- some are good for IETF and some are good for IRTF. I will further consider it with more inputs. 

If you also attended the 117 meeting in-person let's catch up!

Best,
Chunchi

-----邮件原件-----
发件人: [e-mail] <[e-mail]> 
发送时间: 2023年7月21日 6:05
收件人: liuchunchi <[e-mail]>; [e-mail]
抄送: Qin Wu <[e-mail]>; COMBES Jean-Michel INNOV/NET <[e-mail]>; Frank Brockners (fbrockne) <[e-mail]>
主题: RE: Sharing a new draft

Hi Chunchi, Qin, all,

Thank you for sharing this draft. 

Even if I understand that this is a -00, I was expecting the draft to leverage on the long history with the proof of transit work in the IETF. I'm afraid that the current set of use cases are not that appealing to motivate what the document seems (at least to me :-)) to over-sell in the abstract/introduction. 

That's said, I do think that there are aspects of the network path assessment/validation that are worth to be investigated (not only proof of transit, but proof of non transit). These considerations would be more appropriate to investigate in venues such as PANRG, especially that the I-D will have to answer to the same PANRG questions about whether/how internal paths are exposed + how forwarding instructions are signaled to network elements, etc.

FWIW, some comments and suggestions can be found at: 

* pdf: https://github.com/boucadair/IETF-Drafts-Reviews/blob/master/draft-liu-on-network-path-validation-00-rev%20Med.pdf
* doc: https://github.com/boucadair/IETF-Drafts-Reviews/raw/master/draft-liu-on-network-path-validation-00-rev%20Med.doc

Cheers,
Med

> -----Message d'origine-----
> De : OPSEC <[e-mail]> De la part de liuchunchi Envoyé : 
> vendredi 14 juillet 2023 11:09 À : [e-mail] Cc : Qin Wu 
> <[e-mail]> Objet : [OPSEC] Sharing a new draft
> 
> Hi Team,
> 
> We are sharing a new draft we wrote titled "On Network Path 
> Validation". In this draft, we explore the path validation problem, 
> how it affects routing security, its potential solution and several 
> real life use cases.
> 
> If you are interested in the topic we sincerely invite you to take a 
> look and give comments.
> 
> Draft: 
> https://datatracker.ietf.org/doc/draft-liu-on-network-path-validation/
> >
> Thank you!
> 
> Best regards,
> Chunchi
> 
> -----邮件原件-----
> 发件人: I-D-Announce <[e-mail]> 代表 internet- 
> [e-mail]
> 发送时间: 2023年7月9日 21:43
> 收件人: [e-mail]
> 主题: I-D Action: draft-liu-on-network-path-validation-00.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts 
> directories.
> 
>    Title           : On Network Path Validation
>    Authors         : Chunchi Liu
>                      Qin Wu
>                      Liang Xia
>    Filename        : draft-liu-on-network-path-validation-00.txt
>    Pages           : 8
>    Date            : 2023-07-09
> 
> Abstract:
>    Network path validation refers to a technology that ensures data
>    packets to strictly travel along a chosen network path.  It aims to
>    enforce data to travel only on the assigned network path and 
> provide
>    evidence that the data has indeed followed this path.  While 
> existing
>    efforts primarily focus on the control plane, path validation
>    protects and monitors routing security in the data plane.  This
>    document provides a technical definition of the Network Path
>    Validation problem, briefly overviews past efforts, models its 
> ideal
>    solution and design goals, and lists out different use case across
>    various layers of the Internet.
> 
> The IETF datatracker status page for this Internet-Draft is:
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2F
> datatracker.ietf.org%2Fdoc%2Fdraft-liu-on-network-path-
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